State mineral summaries - 1990.
Washington, DC: U.S. Department of the Interior, Bureau of Mines, 1990 Jan; :1-159
This report, now in its second year, provides estimated data and summaries of mineral activities for each state for 1990. Most of the estimates are based on 9 months' data. The summaries were prepared in cooperation with state geological surveys or related agencies.
Exploration; Production; Consumption; Commodities; Legislation; Surveys; Environment; Mineral-industry; Statistical-data
Washington, DC: U.S. Department of the Interior, Bureau of Mines